Sunday, September 23, 2012

Re: [MW:15367] Pipe Alignment tolerances as per ASME B31.3

Hi,

As per knowledge no need to follow the ASME B31.3 IN this case, check and confirm the fit-up in line if fabricated in shop or in field.
Second monitor the joint weld after and during the welding process of two pipes or spools .

Third one , check the straightness of pipe before welding.(solution make straight)

fourth one , check structure alignment is correct or not.(if concrete beam advised to make level )

finally try to put seam to maintain the level .

But After reading your question i am on conclusion that check support weld and welding process .


Thank you.

On Sat, Sep 22, 2012 at 5:34 PM, Biplab Pal <biplab.mech@googlemail.com> wrote:
Dear Experts,
 
We are going to erect the pipe in the pipe rack. The construction is erecting pipe, doing fit-up, and welding. But pipe line in the rack is not straight. they are going the way like snake. Our consturction code is ASME B31.3 process piping. I wanted to know what is the acceptance criteria for the straightness if the line pipe.
Please provide the reference.

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Thanks & Regards
Biplab Pal
Welding Inspector
E-mail:   biplab.mech@gmail.com
 
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With kinds Regards

*********************

PRAVEZ ALAM

MATERIAL/PIPING INSPECTOR

SK E &C

Ruwais Refinery Expansion Project, 

P O Box : 11780, Ruwais,  Abudhabi.

United Arab Emirates.

Mob-+971509867435

E-mail-skec.cv4087@partner.sk.com

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"When I am working on a problem I never think about beauty. I only think about how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong."



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